Device for chalking lines



(No Model.) I

E. WALKER.

DBVIGE FOR GHALKING LINES. 4 v No. 497,362. v 1 Patented May 16, 1893.

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UNITED STATES PATENT ()FFICE.

ERNESTWALKER, OF NEWV ALBANY, INDIANA.

DEVICE FOR CHALKING LINES.

SPECIFIGATIONforming part of Letters Patent No. 497,362, dated May 16,1893.

Application filed September 4,1891. Serial No. 405L799. (No model.)

To all whom it may concern.-

Be it known that I, ERNEST WALKER, a citizenof the United States,residing at New Albany, inthe county of Floyd and State of Indiana, haveinvented certain new and useful Improvements in Devices for Chalkin gLines;

and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to a device for chalking lines or cords, such asused by carpenters and other mechanics.

Among other things the invention has for its object to provide a deviceat a comparatively small expense which may be conveniently operatedwithout a loss of time or waste of the chalk. v

A further object of theinvention is to adapt the chalk holder to receivea rotary motion in passing along or over the line or cord; to provide aguide for the line to the chalk aud'to provide means for impartingmotion from the guide to the chalk and its holder, and to also providean eifective meansfor tightening the connection or taking up slacktherein.

Other objects andadvantages will appear from the following descriptionand claims when taken in connection with the annexed drawings, in which-7 Figure 1, is a perspective view of a main frame; the chalk holder andsecuring devices being, removed. Fig. 2, is a view of the chalk holdingspindle and its guide pulley. Fig.

3, is a perspective view of the bearing and adjusting block for saidspindle. Fig. 4, is a perspective view of the entire device in anoperative position,illustrating the chalk in dotted lines. Fig. 5, is aview of the chalk receiving spindle and its drive pulley, with the chalkillustrated in dotted lines thereon.

In carrying out my invention I take a bar or strip A, of metal or othersuitable material, and of a sufficient length and width to constitutethe main frame. This strip is provided on its under side andlongitudinal edges with flanges a, which may be of dovetail form incross section and are designed to receive and form a seat and guide forthe chalk spindle bearing as will be presently described. This frame orstrip is provided on its under side at one end with a suitable handle B,which may be of wood or other suitable material and the opposite end ofsaid frame or This cylindrical guide has its surface provided withcircular grooves c, to receive cords or lines to be chalked. Thiscylindrical groove guide is provided with a longitudinal bore and isreceived by the rod onspindle O, a nut d, orother suitable fasteningdevice being employed on the upper end of the spindle to hold the guidein position.

E, indicates the rod or spindle which has its upper end preferablypointed and its opposite end externally screw threaded as shown at e.This spindle carries a pulley f, at a suitable distance from its'lowerend as shown and said pulley may be fixed to the spindle by any suitablewell known means so as to form a journal portion g, between the underside of said pulley and the threaded end of the spindle for a purposewhich will presently appear.

F, indicates a slide bearing for the chalk spindle. This bearing may becomposed of a block of-wood or the like and has its oppositelongitudinaledges beveled to correspond with the grooves or flanges inthe under side of the frame A, and is designed to be placed therein.This slide bearing is furthermore provided near one end with avertically disposed aperture to receive the journal end of the spindleE, and surrounding said aperture I prefer to provide a lug or boss h, soas to give more surface to the journal portion of the spindle. Thebearing also carries atasuitable distance from its opposite end, a wingnut or screw '5, which is designed to impinge against or take into theunder side of the frame A, so that said hearing may be adjustablysecured to the frame.

G, indicates an endless guide beltor cord..

to the chalk holding spindle so that when motion is given to said guideit will impart a similar and simultaneous motion to the chalk holder.

The usual commercial form of the chalk is illustrated in dotted lines.

In operation after the slide bearing has been placed in the guides onthe under side of the frame, and beneath the elongated slot therein, thespindle E, after having the nut at the lower end removed, is let downthrough said slot and into the journal aperture of the bearing, afterwhich the nut is replaced. The guide cylinder having been placed uponthe spindle C, and secured in position by means of the nut d, and therope or belt G, placed over both the guide and the pulley f, of thechalk holding spindle, by simply manipulating the wing nut or screw *5,the drive belt or cord may be sufliciently tightened to impart motionfrom the cylinder to the chalk holder. The chalk in its present form ofmanufacture being without the aperture through its center, it will ofcourse be necessary to bore a hole therein for the reception of thespindle, and the chalk is designed to fit Sufiiciently snug upon saidspindle that it will rotate or move with it.

In Fig. 4, of the drawings I have illustrated a lineor cord in aposition to be chalked,and to operate the device it is simply necessaryto grasp the handle B, and place the guide cylinder against the line orcord, and move it gently back and forth upon the same; the chalk ofcourse bearing also against the line. The frictional contact of thecylinder with the line, will impart a rotary motion to the formerandthrough the medium of the belt or rope connection such motion will beim-.

tatable guide, a rotatable chalk holder, and a connection for impartingmotion from the guide to the holder, substantially as specified.

2. A device for chalking lines, havinga rotatable guide, a rotatablechalk holder adjustable to and from the guide, and a connection forimparting rotary motion from the guide to the chalk holder,substantially as specified.

3. The device for chalking lines, comprising a frame, having a guide-wayin its under side and an elongated slot at one end and a handle at theopposite end, a slide bearing arranged in said Way and carrying meansfor adjustably securing it to the frame, a spindle adapted to receivechalk, and havinga drive pulley and arranged in said slide bearing, aspindle rising from the opposite end of the frame, a fluted or groovedcylindrical guide arranged on said spindle and a rope or belt connectingthe pulley of the chalk spindle with the guide, substantially asspecified.

ERNEST WALKER.

WVitnesses:

F. WALKER, HERBERT G. WALKER.

